Telnet

Terminal emulation program that is used to access remote server

• Command line tool
• fast
• Telnet stands for TeleType Network
• now you can use command to control the server
• TELNET Manage and configure other device

SSH

Secure shell m a cryptographic network protocol for operating network service securely over an unsecured network

It is a secure to alternative to the non protected login protocols like Telnet an din secures file transfer methods like FTP

Client server architecture

uses public key cryptography asymteric